Dell E173FPc, Service Manual

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Dell E173FPc
69
15. Definition Of Pixel Defects
15.1 LM170E01
15.1.1 Dot Defect
15.1.1.1 Bright Dot
Dots (sub-pixels), which appeared brightly in the screen when the LCM displayed with dark pattern.
- R,G or B 1 dot --------------------------------- 0 Max
- Adjacent 2 dots -------------------------------- 0 Max
- Total amount of Bright dots -------------------- 0 Max
- Minimum distance of Bright dots --------------- NA
15.1.1.2 Dark Dot
Dots (sub-pixels), which appeared darkly in the screen when the LCM displayed with bright pattern.
- 1 dot -------------------------------------------- 4 Max
- Adjacent 2 dots -------------------------------- 2 Max
- Total amount of Dark dot ---------------------- 4 Max
- Minimum distance of Dark dots --------------- 15mm
15.1.1.3 Total amount of Dot Defects -------------------- 5 Max (Combination)
Note) a. Every dot herein means Sub-Pixel(Each Red, Green, or Blue Color)
b. Bright dot
- Red or Blue dots smaller than half size of sub-pixel are not counted as a defect dots.
- Green dots smaller than 1 / 3 size of sub-pixel are not counted as a defect dots.
c. Dark dots smaller than half size of sub-pixel are not counted as a defect dots.
15.1.2 Polarizer Defects
Where, W: Width
L: Length
D: Average diameter =(a+b)/2
a. Extraneous substances which can be wiped out, like Finger Print, Particles, are not considered as a defect.
b. Defects which is on the Black Matrix(outside of Active Area) are not considered as a defect.
15.1.3 Foreign Material
Where, W: Width
L: Length
D: Average diameter =(a+b)/2
15.1.4 Line Defect
All kinds of line defects such as vertical, horizontal or cross are not allowed.
15.1.5 Bezel Appearance
Scratches, minor bents, stains, particles on the Bezel frame are not considered as a defect.
15.1.6. Others
Issues which is not defined in this criteria shall be discussed with both parties, Customer and Supplier, for
better solution.